Recently in Sustainable Agriculture Category

Wading through the sources of lake contamination

Contamination of urban lakes and streams by polycyclic aromatic hydrocarbons (PAHs) is widespread and has been increasing over the last 40 years in the United States.

PAHs are Toxic

These PAHs can be toxic to bottom-dwelling organisms, can cause tumors in fish, and several are believed to cause cancer in humans. 

In this study, researchers examined five sources of PAHs in 40 urban lakes from across the United States, including coal-tar-based pavement sealcoat, coal combustion, oil combustion, vehicle emissions and wood combustion.

Sealcoat Contributes to PAH Contamination

Of the five sources studied, sealcoat was the strongest contributor to PAH contamination in lake sediment. This research can help those trying to reduce pollution levels in the urban environment by providing them with a better understanding of PAH sources. 

This study, "Sources of PAHs to urban lakes in the United States," was conducted by USGS at the Society of Environmental Toxicology and Chemist  

In his book, "Heatstroke: Nature in an Age of Global Warming" (Island Press, 2009), University of California, Berkeley, biologist Anthony Barnosky. says that because of climate change, wilderness left to its own will no longer look like the natural areas we see today.

Our conservation strategies must be rethought, he adds, because business-as-usual will not preserve all the aspects of nature we have come to know, love and respect.

Setting aside preserves, for example, puts animals and plants in a bind: As global warming makes their current habitats unsuitable, surrounding human development prevents them from moving to more hospitable places. The alternative, assisted migration, smacks of creating wild zoos - quasi-natural areas like the dinosaur wonderland portrayed in the book and movie "Jurassic Park."

"The new twist in preserving nature is that we might have to come up with a separate but equal system, where we actively set aside some tracts of land as wildlands where people can experience this feeling of 'wilderness,' but recognize that the species that live in those places and the landscape are not going to be the species and landscape we are used to," he says. "Our kids are going to see very different things in those kinds of places than we do."

Warming already altering patterns of migration

Barnosky describes in his book how global warming is already causing shifts in the ranges of animals and plants, disrupting migrations and spawning, and stressing animals confined to parks and reserves.

While ecosystem change and extinction are normal, Barnosky reminds us that past climate change, such as cooling at the beginning of glacial periods and warming with the onset of interglacial periods, took place over thousands of years.

The current warming is happening faster, by a factor of about 10.

Global warming multiplies impacts of human activities

Global warming comes on top of many other environmental impacts that have been stressing the environment, Barnosky notes in his book. He wrote "Heatstroke," in part, because he "wanted to raise awareness that global warming is not just an add-on consequence as far as impacts on ecosystems and nature are concerned.

We are all aware of habitat fragmentation, invasive species, growing human populations, and the tradeoff between resources needed to sustain us versus resources to sustain other species.

People tend to think those are the big problems, and that global warming is going to heat things up a bit.

"In reality, global warming, as far as how it is going to change nature, is as big or bigger a problem than all of those other four, and especially when you put it together with all of the other four.

There are feedbacks that make everything much more severe. It is like multiplying rather than adding everything up."

Solutions to protect both species and wilderness

Wilderness must be protected, he says, if for no other reason than that it acts as a canary in a coal mine, "a barometer of how healthy the Earth actually is."

But imperiled species must also be protected as biodiversity resources, he adds, even if this requires assisted migration of not only the endangered species, but also the plants and animals these species interact with in their ecosystem.

One alternative that some scientists have put forward is Pleistocene rewilding, a wild idea to re-establish the large "megafauna" that dominated Earth during the planet's last major bout with global climate change, the period of on-and-off glaciation that took place between 2 million and 10,000 years ago.

Read more details about Barnosky and Heatstroke

Transportation costs can be reduced on the wheel and in the landfill when quality retread tires are used on fleets of trucks, cars and other equipment.

Retread Tire Solutions for Public Sector Fleet Managers in Cities, Counties and States

With the worldwide downturn in the economy facing cities, towns, counties, states, provinces and even villages everywhere, it is more important than ever for fleet managers to manage their tire costs, a significant part of the transportation budget.

Retreads can be the cost saving, and green answer.

Not only are retreaded tires very environmentally friendly, they are far more economical than comparable new tires. The larger the tire size the greater the savings. In fact, for most tire sizes retreads can cut your tire costs by 50% and sometimes even more!

Retread Tire Safety and Reliability

The safety and reliability of today's top quality retreads (quality matters!) has been proven by millions of vehicles throughout the world over billions of miles.

All major commercial and military airlines use retreads - even on the largest planes flying - as do fire engines and other emergency vehicles, school and municipal buses, taxi fleets, race cars, small package delivery services such as FED EX, UPS and even the U.S. Postal Service, along with all types of other commercial and passenger vehicles.

U.S. Federal Executive Order (13149) even MANDATES the use of retreaded tires on selected federal fleet vehicles.

Objective information is available for fleet managers who wish to evaluate the benefits retreads have to offer and much of it can be found on the Tire Retreat & Repair Information Bureau web site, www.retread.org.

Take a look at their extensive information about the true causes of tire debris (also known as rubber on the road & road alligators).

The Tire Retread & Repair Information Bureau is a worldwide association and our materials are all non-commercial and available at no cost to interested readers everywhere.

Information about Retread Tire Solutions

They will send a CD and two DVDs to those who wish to learn more. Their latest DVD, "Reputable Retreading," contains a virtual retread plant tour, along with testimonials from public sector fleet managers and is very convincing to those who are not certain about retreads.

This nonprofit retread organization will also arrange a tour of an actual retread plant in your area. They encourage "doubters" to take a tour because it is very convincing to see how much care goes into the retread process.

You can do get the attention of taxpayers and the environmentalists in your area by using retreaded tires on your public sector fleet vehicles. Your agency can do well and good at the same time by making the switch to this recycled solution of tires -- definitely a problem for communities that must deal with the millions of discarded tires that end up in landfills!

To order the retread tire information CD and DVDs, or to arrange for a retread plant tour or for more specific information contact the organization:

Tire Retread & Repair Information Bureau
www.retread.org
info@retread.org,
Toll-free: 888-473-8732. From other parts of the world call +831-372-1917

On Lincoln's 200th birthday, Feb. 12, 2009, the new Agriculture Secretary Tom Vilsack "broke pavement" on The People's Garden during a ceremony on the grounds of U.S. Department of Agriculture (USDA) commemorating Lincoln's birthday.

Green for Watershed Protection

Secretary Vilsack declared the stretch of pavement permanently closed and returned back to green, and encouraged other Administration officials and the general public to join in to protect the Chesapeake watershed.

"It is essential for the federal government to lead the way in enhancing and conserving our land and water resources," said Vilsack. "President Obama has expressed his commitment to responsible stewardship of our land, water and other natural resources, and one way of restoring the land to its natural condition is what we are doing here today - "breaking pavement" for The People's Garden."

The dedication comes on the 200th anniversary of the birth of the 16th President of the United States, Abraham Lincoln. Lincoln founded the Department of Agriculture in 1862 and referred to it as "The People's Department" in his last annual message to Congress.

Green for Beneficial Gardening Promotion

Secretary Vilsack announced a goal of creating a community garden at each USDA facility worldwide. The USDA community garden project will include a wide variety of garden activities including Embassy window boxes, tree planting, and field office plots.

The gardens will be designed to promote "going green" concepts, including landscaping and building design to retain water and reduce runoff; roof gardens for energy efficiency; utilizing native plantings and using sound conservation practices.

Green Space for Runoff Reduction

The USDA People's Garden will eliminate 1,250 square feet of unnecessary paved surface at the USDA headquarters and return the landscape to grass. The changes signal a removal of impervious surfaces and improvement in water management that is needed throughout the Chesapeake Bay Watershed.

Demonstration Habitat for Backyard and Green Space Applications

The new garden will add 612 square feet of planted space to showcase conservation practices that all Americans can implement in their own backyards and green spaces.

As a component of the garden, pollinator-friendly plantings will not only provide important habitat for bees and butterflies, but can serve as an educational opportunity to help people understand the vital role pollinators play in our food, forage and all agriculture. The garden plot is adjacent to the site of the USDA Farmer's Market.

Watershed Protection of the Chesapeake Watershed

About 100,000 streams and rivers thread through the Chesapeake's 64,000-square-mile watershed, which is home to almost 17 million people in Virginia, Maryland, Pennsylvania, West Virginia, Delaware, New York and the District of Columbia. The Chesapeake Bay is the largest estuary in North America, with a length of 200 miles and 11,684 miles of tidal shoreline, more than the entire U.S. West Coast.

The Chesapeake Bay supports more than 3,600 species of plants, fish and animals.

Reduce Pollution on Wildlife Habitat, Forests and Water Resources...and Improve Community Natural Resources

USDA leads efforts on public and private lands to help reduce the impact of nutrient and sediment pollution on wildlife habitat, forest lands and water quality, as well as supporting community involvement in managing natural resources, urban green space and land stewardship. For more information about USDA, the People's Garden, the Chesapeake Bay Watershed and other conservation and agriculture related programs available in local communities, visit a USDA Service Center or go to the USDA Web page at www.usda.gov.

Complementary education materials such as the distance-learning project MonarchLIVE and partnerships with schools and the North American Pollinator Protection Campaign which will extend the impact and reach of the USDA garden initiative are available at na.fs.fed.us. Backyard conservation and other materials also can be obtained by dialing 1-888-LANDCARE.

Trade associations are taking a leadership role in developing sustainability standards for their member companies and often leading the charge with their own association operations. One such association is the OFA.

OFA is an Association of Floriculture Professionals -- a national organization of greenhouse growers, garden center operators, nurseries, retail and wholesale florists, interior plantscapers, green industry suppliers, students, and educators.

They have implemented sustainable methods in their own offices, promoted the topic in education courses and cosponsored a national conference on sustainability.  

On October 29-30, 2007, the Leonardo Academy and Scientific Certification Systems (SCS) co-hosted a meeting to start soliciting stakeholder input on SCS-drafted language to create a national standard for producers and handlers (including retailers) who want to make a claim of engaging in sustainable agriculture (includes ALL crops, including greenhouse and nursery crops) practices.  The intent of SCS is to get these draft standards adopted by the American National Standards Institute (ANSI) no later than April 2010. However, plans sometimes go awry.  The US Department of Agriculture has challenged the process undertaken by Leonardo Academy. 

OFA's website also provides a wealth of information about sustainable practices for their member companies.

And the OFA Short Course, July 11-14, 2009 has a theme of "Make It Your Business". The Monday sustainability sessions will cover everything from the proposed sustainability standard to methods for marketing sustainability to practical ideas for becoming more sustainable.

Trade associations are taking a leadership role in developing sustainability standards for their member companies and often leading the charge with their own association operations. One such association is the OFA.

OFA is an Association of Floriculture Professionals -- a national organization of greenhouse growers, garden center operators, nurseries, retail and wholesale florists, interior plantscapers, green industry suppliers, students, and educators.

They have implemented sustainable methods in their own offices, promoted the topic in education courses and cosponsored a national conference on sustainability.  

On October 29-30, 2007, the Leonardo Academy and Scientific Certification Systems (SCS) co-hosted a meeting to start soliciting stakeholder input on SCS-drafted language to create a national standard for producers and handlers (including retailers) who want to make a claim of engaging in sustainable agriculture (includes ALL crops, including greenhouse and nursery crops) practices.  The intent of SCS is to get these draft standards adopted by the American National Standards Institute (ANSI) no later than April 2010. However, plans sometimes go awry.  The US Department of Agriculture has challenged the process undertaken by Leonardo Academy. 

OFA's website also provides a wealth of information about sustainable practices for their member companies.

And the OFA Short Course, July 11-14, 2009 has a theme of "Make It Your Business". The Monday sustainability sessions will cover everything from the proposed sustainability standard to methods for marketing sustainability to practical ideas for becoming more sustainable.

California Green Solutions is building a robust catalog of professional training courses and certification programs offered by private companies and colleges.  You will find this robust catalog covers business law, construction, human resources...as well as engineering and green building...and more. 

Visit the Green and Sustainable Job Training Catalog at:  CaliforniaGreenSolutions.com

Caucasian (dark-colored) bee originates from the Caucasus region that separates Europe from Asia.

Italian bee is the most common bee in the United States. Its origin: Italy.

This is one of Susan Cobey's New World Carniolan bees.The Carniolans originate from the Northern Balkans, Slovenia and Caucasian mountains.(Photos by Kathy Keatley Garvey)

The California State Beekeepers’ Association and the Turkish Foundation for Combating Soil Erosion for Reforestation and the Protection of Natural Habitats (TEMA), are cooperating in research and exchange of bees to strengthen the honeybee populations around the world.

Susan Cobey is internationally known for her expertise in honey bee breeding and instrumental insemination. She teaches classes that draw students from throughout the world. A bee breeder and geneticist for more than 30 years, she developed and maintains the world-renowned New World Carniolan stock.

“Researchers are still collecting more samples from collapsing colonies and trying very hard to process those and previous samples to see what may be causing the problem,” said UC Davis Extension apiculturist Eric Mussen, who believes that CCD is not caused by one single factor, but multiple factors, including malnutrition, pesticides, diseases, parasites and stress.

“Nearly every state in the U.S. has some to many beekeepers who are having difficulty with losses that appear to be CCD,” said Mussen, Extension apiculturist at UC Davis since 1976 and a former state and national beekeeper of the year. “Many countries are encountering similar bee losses.  Since we don't know what is causing ours, or theirs, we cannot say that the cause(s) is the same, but it is likely.”

In CCD, nearly all adult worker bees unexpectedly fly away from the hive, abandoning the stored honey, pollen, larvae and pupae. Usually they leave in less than a week, and only the queen and a few young workers remain, Mussen said.

CCD  is not a new occurrence, Mussen said. “Similar phenomena have been observed since 1869. It persisted in 1963, 1964 and 1965 and was called Spring Dwindling, Fall Collapse and Autumn Collapse. Then in 1975, it was called Disappearing Disease. But the disease wasn’t disappearing—the bees were.”

Can we surmise what the future holds for bees? “No, we cannot,” Mussen said. “We hope that this episode will just be one in a number that have occurred, and resolved themselves, in the past.”

At the House Agriculture Subcommittee on Horticulture and Organic Agriculture hearing on June 26 to review the status of pollinator health and CCD, subcommittee chair Cong. Dennis Cardoza of California’s 18th District, said that the “importance of bees and other pollinators cannot be underestimated. Nearly 130 different crops—totaling over $15 billion in annual farm gate value—depend on pollination to grow.”

Testimony revealed that the lack of pollinators could further increase food prices. Said Cardoza:  “USDA desperately needs to better coordinate their research and response to this ongoing crisis, and more clearly define their needs so that Congress can adequately respond.”

“Should the CCD crisis continue unchecked, pollinated ingredients such as strawberries, cherries and almonds could become scarce or too expensive to obtain, forcing us to evaluate whether we can continue offering popular flavors that depend on pollinated ingredients because of higher production costs,” Pien said.

Those interested in making online donations to UC Davis to help save the honey bees can access the UC Davis Department of Entomology Web page. Or, checks may be made out to “UC Regents” and mailed to the UC Davis Department of Entomology, One Shields Ave., Davis, CA 95616.

University of California Davis bee breeder-geneticist Susan Cobey and Steve Sheppard, a professor and apiculturist at Washington State University, Pullman, Wash., are investigating several races of the Western or European honey bee (Apis mellifera), which European settlers brought to America in 1622.
 
The Cobey-Sheppard research team has received semen from the Italian bee, shipped from Italy; the Carniolan bee, from Germany; and the Caucasian bee, from the Caucasus region of Eurasia. The Italian bee is a honey-colored bee that's the most common honey bee in the United States. The Carniolan and the Caucasian bees are darker in color.
 
The semen from the three races will be used to inseminate queens that will be kept in an APHIS-approved quarantine until determined safe to release, Cobey said. APHIS, the Animal and Plant Protection Service of the U.S. Department of Agriculture, is charged with protecting and promoting U.S. agricultural health.

Monoculture Doesn't Work with Insects, Either!

"As well as enhancing genetic diversity, known to increase fitness in honey bees, we're hoping this will result in an increased level of resistance to the exotic and introduced pests and diseases of our honey bees," Cobey said.
 
America's beekeepers reported losing 36.1 percent of their bees over the last year, up from 32 percent the previous year. The survey, commissioned by the Apiary Inspectors of America, showed that the beekeepers attributed 29 percent of the recent loss to colony collapse disorder, in which bees mysteriously abandon their hives.
 

The declining bee population crisis is particularly troubling, Cobey said, because bees pollinate about one-third of the food we eat, including fruits, vegetables, nuts and seeds.

 
The bee research is funded by the California State Beekeepers' Association and the Turkish Foundation for Combating Soil Erosion for Reforestation and the Protection of Natural Habitats (TEMA), founded in 1992.
 
Cobey will be in Turkey Aug. 1 to 14 to participate in the TEMA Bee Project. "One aspect of this is the preservation of Turkey's native Caucasian honey bee," she said.
 
The UC Davis geneticist will teach a honey bee instrumental insemination class, Aug. 16 to 19 at the Middle East Technical University, Department of Biology, Ankara, Turkey.
 
Cobey is internationally known for her expertise in honey bee breeding and instrumental insemination. She teaches classes that draw students from throughout the world. A bee breeder and geneticist for more than 30 years, she developed and maintains the world-renowned New World Carniolan stock.
 
At their request, Cobey will confer with officials on native bee races at the Bee Selection and Artificial Insemination Center at Camili of Artvin Province. The Camili region of six villages is where apiculturists discovered pure Caucasian bees thought to be extinct. They then began queen bee breeding, selection work and artificial insemination. The center officials seek Cobey's impressions and advice in connection with their work.
 
A "bee safari" is also planned to look at the five native races of honey bees in Turkey.
 
Prior to heading for Turkey, Cobey will guest-lecture at the Federation of Irish Beekeepers' Association summer course, July 21-26 in Gormanston, Ireland.
 
Those interested in making online donations to UC Davis to help save the honey bees can go to the UC Davis Department of Entomology Web page, http://entomology.ucdavis.edu/news/howtodonatetobeebiology.html. Or, checks may be made out to "UC Regents" and mailed to the UC Davis Department of Entomology, One Shields Ave., Davis, CA 95616.

Susan Cobey with queen bee cells. (Photo by Kathy Keatley Garvey)

Monarch butterflies migrate more than 2,000 miles and on the trip north to the same groves of trees, it can take THREE GENERATIONS to make the trip!

Watch a video about Monarchs --  to understand how much we have to learn about nature's natural systems.